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Commit 9c32e815 authored by Ben Gardner's avatar Ben Gardner Committed by Guenter Roeck
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hwmon: (lm75) Add support for TMP75C 



The TMP75C has a different control register layout and only supports
12-bit temperature samples (0.0625 deg C).
The continuous sample rate is ~12 Hz.

Signed-off-by: default avatarBen Gardner <gardner.ben@gmail.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 0b056b29

Documentation/hwmon/lm75

+3 −2
Original line number Diff line number Diff line
@@ -42,8 +42,8 @@ Supported chips: 
    Addresses scanned: none

    Datasheet: Publicly available at the ST website

               http://www.st.com/internet/analog/product/121769.jsp

  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP175, TMP275

    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp275'

  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75C, TMP175, TMP275

    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75c', 'tmp275'

    Addresses scanned: none

    Datasheet: Publicly available at the Texas Instruments website

               http://www.ti.com/product/tmp100
@@ -51,6 +51,7 @@ Supported chips: 
               http://www.ti.com/product/tmp105

               http://www.ti.com/product/tmp112

               http://www.ti.com/product/tmp75

               http://www.ti.com/product/tmp75c

               http://www.ti.com/product/tmp175

               http://www.ti.com/product/tmp275

  * NXP LM75B

drivers/hwmon/lm75.c

+7 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ 
	tmp175,

	tmp275,

	tmp75,

	tmp75c,

};



/* Addresses scanned */
@@ -280,6 +281,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id) 
		data->resolution = 12;

		data->sample_time = HZ / 2;

		break;

	case tmp75c:

		clr_mask |= 1 << 5;		/* not one-shot mode */

		data->resolution = 12;

		data->sample_time = HZ / 4;

		break;

	}



	/* configure as specified */
@@ -343,6 +349,7 @@ static const struct i2c_device_id lm75_ids[] = { 
	{ "tmp175", tmp175, },

	{ "tmp275", tmp275, },

	{ "tmp75", tmp75, },

	{ "tmp75c", tmp75c, },

	{ /* LIST END */ }

};

MODULE_DEVICE_TABLE(i2c, lm75_ids);